Vulnerability · Published Apr 20, 2026 · Assigned by GitHub_M
CVE-2026-35570OpenClaude has Sandbox Bypass via Early-Exit Logic Flaw that Allows Path Traversal
High 8.4
In plain English
A high-severity path traversal in openclaude from Gitlawb. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Versions prior to 0.5.1 have a logic flaw in `bashToolHasPermission()` inside `src/tools/BashTool/bashPermissions.ts`. When the sandbox auto-allow feature is active and no explicit deny rule is configured, the function returns an `allow` result immediately — before the path constraint filter (`checkPathConstraints`) is ever evaluated. This allows commands containing path traversal sequences (e.g., `../../../../../etc/passwd`) to bypass directory restrictions entirely. Version 0.5.1 contains a patch for the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @gitlawb/openclaude | 0.5.1 | GHSA-m6rx-7pvw-2f73 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Gitlawb | openclaude | < 0.5.1 |
Weakness: CWE-22, CWE-284 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N